This process is called dustless blasting. It uses a mixture of water and an abrasive such as recycled glass, silica sand, or coal slag. The mixture gets blasted between 60-150 psi. It cuts through ...

Slag from the steel industry could help save some of Wales' most rare plants, according to an ecologist. The material, regarded as waste, has been described as a potential "game-changer" when it ...

In his painting, “Pat Stood on Slag,” Bob McCormick portrays his grandfather as a young lad standing in a field of slag near a mining patch in Schuylkill County’s coal fields. Patrick Henry ...